Add image of Glenn with O'Malley and Donnelly

http://commons.wikimedia.org/wiki/File:John_Glenn_With_T.J._O'Malley_and_Paul_Donnelly_in_Front_of_-_GPN-2002-000049.jpg

Original: http://grin.hq.nasa.gov/ABSTRACTS/GPN-2002-000049.html